Mechanism for gasolene-engines.



No. 879,609. PATENTED FEBQ18, i908.

P. W. DILLON. Y

MECHANISM FOR GASOLENE ENGINES.

APPLICATION FILED DEO.22, 1905. v

2 SHEETSSHEET 2.

' Pa s.

@fl/ I Z gs 15 a %I 10 UNI D STATES PATENT onnron.

PAUL W. DILLON, OF

STERLING, ILLINOIS.

MECHANISM FOR GASOLENE-ENGINES.

Application filed December 22. 1905. Serial No. 92,898.

To all whom it may concern:

Be it known that I, PAI'IL W. DILLON, a

citizen of the United States, residing at Sterling, in the county ofWhiteside and State of Illinois, have invented certain new and use tothe accompanying drawings, and to the letters and figures of referencemarked thereon, which form a part of this specification.

My invention has reference to mechanism for gasolene engines, andpertains more specially to those devices by means of which thesuccessive charges of gas are generated and exploded.

One of the chief improvements in my invention consists in means forholdin each charge of gas under pressure and exp oding it, the force ofthe explosion opening means of communication to the cylinder of theengine. Provision is also made for a partial reduction of the expansiveforce before it comes in' contact with the piston-head.

In the drawings: Figure 1 is a vertical longitudinal section in the line{II-11} of Fig. 3. Fig. 2 is an enlarged detail showing the pumpmechanism, Fig. 3 is a plan view, with the cylinder mechanism in partialsection. Fig. 4 is an enlarged detail, partly in section in the line 'y@of Fig. 3. Fig. 5 shows the cam 50 in enlarged detail, and Fig. 6 is asimilar view of the cam 57.

Similar numbers refer to similar parts throughout the several figures.

1 represents a receptacle, divided by a partition 2 into thecompartments 3 and 4, the chamber 3 constituting -a storage tank for thehydrocarbon which furnishes the explosive char e. The chamber 3 isprovided with a supp y pi e 5, and aI'Loutlet pipe 6 leading to a smalchamber 7. The chamber 4 is intended for the storage of air under pres-.just b the ex sure, such chamber being provided with an outlet ipe 8,connecting with the chamber 9,

dlow the chamber 7. Communicating with the compartment 9 is an explosionchamber 10, and above the last-named chamber, and communicatingtherewith, is a chamber 11. Inclosing the compartments 7, 9, 10

and 11 is a casing 12.

a The assage' from the compartment 9 to ilosionchamber 10 is adapted tobe Specification of Letters Patent.

Patented Feb. is, 1908.

closed by an u wardly seating valve 13, supported on the ower end of avalve-stem 14, whlch is projected upwardly through and above thecompartment 9. The passage from the chamber 10 to the chamber-11" isprovided with a downwardly seating valve 15, fixed on the lower end of avalve-stem 16, which is projected upwardly through and 1 above thecasing 12. In the floor of the chamber 7 is a small opening 17, formingmeans of communication between such chamber and the compartment 9, saidopening being normally closed by a needle-valve 18, extending upwardlythrough the chamber 7, and provided 'above the same with a valvestem1.9.

The explosion chamber 10 is provided with a sparking device 20, whichcan be operated in any usual manner to ignite the successive charges ofgas in such chamber.

21 is a rotary shaft on which is fixed a rotary piston-wheel 22,provided on its periphery with a series of equi-distant blades orpistons 23. Inclosing the blades 23 is a casing 24, there being formedby such casing and the periphery of the wheel 22 a rotary cylinder 25.At one portion of its periphery the casing 24 is attached to the casing12, and the compartment 11 communicates with the cylinder 25 through apassage 26. The cylinder 25 is providedwith an exhaust pipe 27.

In Fig. 3 is shown a rotary shaft 28, supported at ri ht angles to theshaft 21 by means of a earin 29 on said last-named shaft and a journabox 30 on the opposite end of the shaft 28, such box being supported on.a suitable frame or bed. (Not shown.) Feathered on the shaft 28 is afriction-wheel 31, engaged by a friction disk 32 fixed on the shaft 21.Integral with the wheel 31 is a collar 33, engaged by the lower forkedend of a lever 34, which may be fulcrumed in the frame of the machine(not shown) so that by the operation of such lever the wheel 31 can beadjusted upon the shaft 28, with reference to the disk 32.

Fixed to the casing 24 is a bracket 35, perforated to permit the passageof the upper ends of the valve-stems 14, 16 and 19, respectively. A pairof sup orts 36 are secured to the casing 12, and xed in such supports isa stationary shaft 37. Fulcrumed on the shaft 37 is a lever 38, providedat one end with a yoke 39, engagiru a collar 40 on 110 a cam 41, havingin one of its faces acamtrack 42, engaged by a roller 43 (dotted lines)on the end of the lever 38. lnterposed between the bracket 35 and collar40, on the valve-stem 16, is an extensile coiled spring stem 14. A cam50 is fixed on the shaft 28,

provided in one of its faces with a cam-track 51, engaged by a follower52 (dotted lines) on the end of the lever 47. An extensile coiled 53 issecured between the bracket 35 41nd a collar 53 on the upper end of thevalvestem 14. A lever 54 is also fulcrumed on the shaft 37, and providedat one end with a yoke 55 engaging a collar 56 on the alve-.

stem 19. ()n the shaft 28 is fixed a cam 57, having in one of its facesa cam-track 58, engaged by a follower 59 (dotted lines) on the end ofthe lever 54. Interposed between the bracket 35 and collar 56, on thevalvestem 19, is an extensile coiled spring 60.

61 is an airump, provided with a plunger 62, connected y a pitman 63with a crank 6-4 on the end of the shaft 28. By means of a pip e 65 theair is forced from such pump into the chamber 4, and from thence throu hthe ipe 8 to the compartment 9. The pipe 65 1s provided with acheck-valve, as at 66, to prevent the return of the air to the pump, and

said pump has an inlet pipe 67, provided with a suitable check-valve toprevent return of the air through suchpipe. To equalize the pressure ofthe air and gases in the tanks 3 and 4, such tanks are connected by apipe 68. The shaft 21 is journaled in bearing 69, suitably supported ona foundation or frame. (Not shown.)

The style of engine shown in the drawings is especially adapted for usein connection with motor-vehic es, in which use the move ment of theshaft 21 would be imparted by an suitable method to the rear axle of theve icle. When used in this way the bearings 69 and 30 would be securedto the body or frame of the motor-car, and the lever 34 adapted to beoperated from the front of the vehicle.

The operation of the machine is as follows: Assuming the air in the tank4 to be under pressure, the valve 18 is raised sufliciently to permit asmall quantity ofgasolene to run into the compartment 9, where it ismixed the action of which raises the outerend of the lever 47, causingthe inner end thereof to force the collar 49 and valve-stem 14downwai'dly, opening the valve. The charge of gas then passes from thecompartmentQ in'to roduce' the chamber 10, and the valve 13 is againclosed, such valve being normally held in a closed osition by means ofthe spring 53. Upon the closing of'the valve 13 the charge in thechamber 10 is ignited and the explosion follows. The valve 15 isnormally held in position in the valve-seat by means. of the spring 44,the tension of which is sufficient to resist the pressure of the gas inthe chamber 10 before it is ignitedg, The force of the explosion,however, opens the .valve 15, and permits the gas to ex and into thecompartment 11, and from t ence through the passage 26 into the cylinder25. The angle of the passage 26 with reference to said cylinder is suchas to cause the esca ing gases to strike against the rear faces. 0 .thevanes 23 at approximately a right angle, the force of each explosionbeing expended upon a plurality of such vanes. he urpose of thecompartment 11 is to permit a partial expansion of the gas, immediatelyfollowing the explosion resulting in a steadier movement of the wheel22. Were it not for the interposition of such compartment the force ofthe explosion would be imparted directly to the pistons, and would be inthe nature of a blow, whereas the use of the chamber 11 gives to theforce of the gases the effect of ,a push.

When the force of the explosion has been expended the yoke 39 is againmoved downwardly, permitting the valve 15 to return to its seat. Toprevent such valve moving downwardly and seating too abruptly the spring45 is provided on the upper end of the valve-stem. The tension of thisspring is not sufficiently strong to counteract the force 1 of thespring 44, but prevents a too sudden impact of the valve with thevalve-seat. After enterin the o linder 25 the gases pass nearly aroun,the wlieel 22, escaping through the exhaust-pipe 27. After being set inmotion the exploslons followpne another in rapid .13, the speed of saidwheel, and of the devices control ed thereby, will be at a minimum, butas the wheel is moved toward the periphery of the disk, such speed Willcorrespondingly increase. Through the rotation of the shaft 28 the pump61 iscontinuously operated to maintain the air pressure in the tank 4.

While the drawings illustrate my device in connection with a rotaryengine, I do not Wish to .be understood as limiting myself to thatconstruction, as by slight adaptation the same mechanisms can be easilyapplied to engines ofother types.

In some devices of this class the explosive charge is first compressedand then conducted to a chamber communicating with the cylinder of theengine, where the explosiontakes place. In doing this the charge expandsto some extent before the explosion, and the efl'ect'of the compressionit has been subjected to is in some degree lost. The efficiency of theexplosion is increased by the degree of pressure to which the charge issubjected just prior to the explosion, and in my machine its designed tomaintain the same pressure upon the gas in the chamber 10 as before itenters such chamber, and there being no opportunity for the gasto-expand or escape until the explosion takes place the charge of gasremains under the same pressure until that time.

What I claim as my invention, and desire to secure'by Letters Patent ofthe United States, is:

1. Mechanism for gasolene engines, comprising a rotary shaft 21,provided with a disk 32, fixed thereon; a rotary shaft 28, at rightangles to the shaft 21, and havinga friction wheel 31 slidably mountedthereon; a wheel 22, fixed on the shaft 21, and provided on itsperiphery with a plurality of vanes; a circular casing, inclosing saidvanes;

an expansion chamber, communicating with.

said cylinder; an ex losion chamber, communicating with sai expansionchamber; a valve, closing the opening between said exlosion andexpansion chambers; meansfor olding such valve normally closed; meansfor holding said valve open immediately. following the explosion, suchmeans being actuated by the rotation of the shaft 28; a mix ing chamber,communicating with said explosion chamber, and provided with a valveadapted to close the opening between the mally closing the openingbetween the same;

means for holding such valve normally closed; means for slidably openingsuch valve upon each rotation of the shaft 28 means for introducing acurrent of air under pressure to themixin chamber; and means foradjustment of t e wheel 31 upon the shaft 28, substantially as shown anddescribed.

2. In mechanism of the class named, the combination of the explosionchamber 10; the expansion compartment 11, auxiliary thereto; the valve15, interposed between the chambers 10 and'll, and provided with thevalve stem 16; the spring 44, holding the valve 15 normally in its seat;the lever 38, engaging the valve-stem 16 to hold said valve open, andmeans for suitably actuating the lever 38, substantially as shown anddescribed.

3. The combination of the chamber 9, provided with the outlet valve 13;the valvestem 14, fixed to the valve 13, and provided with a collar- 49;the spring 53, holding the valve 13 normally in its seat; lever 47,engaging the collar 49; and means for suitably actuating said lever,substantially as and for the purpose set forth.

In testimony whereof, I afiix my signature, in presence of twowitnesses.

PAUL W. DILLON.

Witnesses:

J. W. HENRY, R. W. E. MrrormLL,

